From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner+w=401wt.eu-S1756911AbYE0Kfi@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
	id S1756911AbYE0Kfi (ORCPT <rfc822;w@1wt.eu>);
	Tue, 27 May 2008 06:35:38 -0400
Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756201AbYE0Kf0
	(ORCPT <rfc822;linux-kernel-outgoing>);
	Tue, 27 May 2008 06:35:26 -0400
Received: from www.church-of-our-saviour.org ([69.25.196.31]:35456 "EHLO
	thunker.thunk.org" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org
	with ESMTP id S1756178AbYE0Kf0 (ORCPT
	<rfc822;linux-kernel@vger.kernel.org>);
	Tue, 27 May 2008 06:35:26 -0400
Date: Mon, 26 May 2008 23:08:54 -0400
From: Theodore Tso <tytso@mit.edu>
To: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Cc: jeff@garzik.org, linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] ata: ahci: power off unused ports
Message-ID: <20080527030854.GC7515@mit.edu>
Mail-Followup-To: Theodore Tso <tytso@mit.edu>,
	Kristen Carlson Accardi <kristen.c.accardi@intel.com>,
	jeff@garzik.org, linux-ide@vger.kernel.org,
	linux-kernel@vger.kernel.org
References: <20080508161008.59361de5@appleyard>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20080508161008.59361de5@appleyard>
User-Agent: Mutt/1.5.15+20070412 (2007-04-11)
X-SA-Exim-Connect-IP: <locally generated>
X-SA-Exim-Mail-From: tytso@mit.edu
X-SA-Exim-Scanned: No (on thunker.thunk.org); SAEximRunCond expanded to false
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On Thu, May 08, 2008 at 04:10:08PM -0700, Kristen Carlson Accardi wrote:
> power off unused ports
> 
> If the port isn't either a drive bay or an external SATA port, do not 
> keep the phy powered on if the port is unoccupied. This saves .75 watts
> on most laptops.  A module parameter can be used to override this 
> behavior and allow the phy's to be powered up regardless of whether it
> has externally accessible SATA ports. 
> 
> Signed-off-by:  Kristen Carlson Accardi <kristen.c.accardi@intel.com>

Hi,

I'm wondering what's the status of this patch?  

if this has hit a subsystem tree yet?  0.75 watts power savings sounds
really cool, but it doesn't seem to be in Linus's mainline yet.  Has
it hit a subsystem tree yet, or is there some issue that still needs
to be resolved before it can go it?

Thanks, regards,

							- Ted